User's Manual

4
System Operating Modes
Note: If installation of the Precision Soil Sensor system has not been completed
or the system is not yet operational, refer to System Installation and Setup
procedures beginning on page 8.
NormalOperatingModes
Watering Permitted
When the Precision system is in the Watering
Permitted mode, the current soil moisture
% value is displayed, and the Green LED is on.
In this example, the current soil moisture level
is 42%, which is below the *50% soil moisture
maintenance level, and watering is allowed.
Watering Restricted
When the soil moisture is above the *50%
soil moisture maintenance level,, the Precision
system switches to the Watering Restricted
mode. A delay period of *4 hours begins
counting down before watering is actually
shut off. The delay period allows any remain-
ing sprinkler zones in the watering cycle to
operate. The display will show the current soil
moisture % value alternating with the amount
of time remaining in the watering cycle com-
pletion period.
In this example, the moisture level is 96%, and
the Green LED is on since watering will be
allowed to continue for 4 hours. The Watering
Restricted mode will begin immediately
following the watering cycle completion
period. While in the Watering Restricted mode, the current soil moisture %
value with the No Watering symbol will be displayed, and the Red LED
will remain on.
Note: Ideally, one watering cycle should replenish the moisture level to 100%.
Watering program changes may be required to achieve this condition. Refer to
your control timer user’s guide for information regarding programming options.
*Note: A value shown with an asterisk (*) indicates that it is the factory default
setting within an adjustable range. Refer to System Operations Menu beginning
on page 6 for detailed information regarding system settings and adjustment
options.
SmartBypassMode
The Smart Bypass feature enables the sprinkler
system to operate while the Precision system
is in the Watering Restricted mode.
Pressing the Bypass button toggles
the Smart Bypass feature on and o. When
switched on, the Bypass mode will be auto-
matically canceled in *24 hours, or it can be
manually canceled at any time.
While the Precision system is in the Smart
Bypass mode, the Green LED will be on and
the Yellow LED will blink continuously. The
display will show the current soil moisture
% value alternately with the amount of time
remaining until the Watering Restricted mode
resumes. In this example the moisture level
is 85% and the Green LED is on. There are 24
hours remaining in the Smart Bypass mode.
FreezeShut-oMode
If the sensor detects that air temperature has dropped to near freezing,
the Precision system automatically switches to the Freeze Shut-o mode
to restrict watering. When the temperature rises, the Freeze Shut-o mode
is canceled. Normal Operation mode will resume after the delay period set
by the Smart Bypass Timer.
In this example, air temperature is detected
at the minimum setting of *39°F and watering
has been canceled. The Freeze temperature
and No Watering symbols are displayed,
and the Red LED will blink continuously.